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 use_exec

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cpp11_thread_local.cpp

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#include <emscripten.h>

#include <emscripten/wasm_worker.h>

#include <assert.h>

thread_local int tls = 1;

void main_thread_func()

{

assert(!emscripten_current_thread_is_wasm_worker());

EM_ASM(out($0), tls);

#ifdef REPORT_RESULT

REPORT_RESULT(tls);

#endif

}

void worker_main()

{

assert(emscripten_current_thread_is_wasm_worker());

assert(tls != 42);

assert(tls != 0);

assert(tls == 1);

tls = 123456; // Try to write garbage data to the memory location.

emscripten_wasm_worker_post_function_v(0, main_thread_func);

}

char stack[1024];

int main()

{

EM_ASM(out($0), tls);

assert(!emscripten_current_thread_is_wasm_worker());

tls = 42;

emscripten_wasm_worker_t worker = emscripten_create_wasm_worker(stack, sizeof(stack));

emscripten_wasm_worker_post_function_v(worker, worker_main);

}